4
INSTALLATION
3
10.
Fasten the rear body (mounting plate) to wall using supplied screws.
11.
Connect wires to quick wiring terminal block as appropriate using the new terminal
designations. Refer to Wiring Diagram section of this manual if required for assistance.
12.
Make sure all of the wire connections are secure and are not touching any other
terminal to prevent electrical shorts and potential damage to the thermostat.
13.
Turn the front thermostat body over exposing the rear view of the circuit board
14.
Locate the internal fan option switch, HG (Gas) / HE (Elec) on the circuit board.This
switch controls the heating system fan delay. Select gas for gas or oil fired systems.
This will allow the furnace to run for a few seconds before initiating the fan. Select
electric for systems with electric furnace elements that require the fan to come on
immediately.
15.
Using your fingers, gently flip the switch towards the HG (Gas) or HE (Elec) selection
that indicates the low voltage heating system the thermostat will control.
16.
Locate the internal NORM NON-HP / HP switch on the circuit board. This switch
configures the thermostat for normal (NORM NON-HP) heating and cooling systems or
heat pump (HP) systems.
17.
Using your fingers, gently flip the switch towards the NORM NON-HP or HP selection
that indicates the low voltage heating system the thermostat will control.
18.
Attach front body of thermostat to rear body of thermostat being careful to align the
terminal pins on the front body with the terminal block on the rear body.
19.
Open front thermostat door and open battery compartment door.
20.
Install two new "AA" alkaline batteries into battery compartment. Make sure to locate
the positive (+) ends of the batteries and match them with the positive (+) terminals
located in the battery compartment.
21.
Close battery compartment.
22.
Restore system power so you can test installation.
3.2
Installing Your New Thermostat cont.
TESTING YOUR
NEW THERMOSTAT
4
NOTE: Test your thermostat prior to programming any user settings. Pressing the
RESET button will erase any user entries previously programmed. This will erase all
user settings and return them to their default values.
WARNING!
Read BEFORE Testing
• Do not short (or jumper) across terminals on the gas valve or at the heating or cooling
system control board to test the thermostat installation. This could damage the
thermostat and void the warranty.
• Do not select COOL mode of operation if the outside temperature is below 50˚ F (10˚ C).
This could possibly damage the controlled cooling system & may cause personal injury.
• This thermostat includes an automatic compressor protection feature to avoid potential
damage to the cooling system from short cycling. This thermostat automatically provides
a 5-minute delay after turning off the cooling system output to protect the compressor.
This protection is also present in the heat mode of operation on single stage heat pump
systems to protect the compressor.
cont.
NOTE: If you installed the batteries prior to accomplishing steps 14 thru 17 then you
will need to reset the thermostat to register your thermostat switch configurations prior to
programming any user settings. Gently press the RESET button on the front of the
thermostat using a paperclip or a small pencil tip.
5
TESTING YOUR
NEW THERMOSTAT
4
cont.
PROGRAMMING
USER SETTINGS
5
5.1
Default Thermostat Settings
Function Status After Reset
Operation Mode Normal Operating Mode
Room Temperature 70˚ F (21.0˚ C), to be renewed within
5 seconds
Setpoint Temperature According to system switch:
62˚ F (17.0˚ C) for Heat or Off
85˚ F (29.0˚ C) for Cool
Temperature Scale ˚F or ˚C dependent on switch setting
Low Battery Warning Off, to be renewed within 5 seconds
Temperature Differential 1˚ F (0.5˚ C)
Short Cycle Protection Timer Reset
Output Relays Off
1. Place the system switch in the HEAT position.
2. Press the button on the keypad until the setpoint temperature setting is a minimum of 3
degrees higher than the current room temperature. The heating system should start within
several seconds. The fan may not turn on immediately due to the heating system built-in fan
delay.
3. Place the system switch in the OFF position. The heating system should stop within several
seconds on normal single stage heating or cooling systems. On single stage heat pump
systems you must wait 5 minutes for the automatic compressor short cycle protection period to
expire, or press the RESET button to bypass this feature for initial testing purposes. Pressing the
RESET button will erase any user program settings.
4. Place the system switch in the COOL position.
5. Press the button on the keypad until the setpoint temperature is a minimum of 3 degrees
lower than the current room temperature.
6. The cooling system should start within several seconds. Place the system switch in the OFF
position. The cooling system should stop within a few seconds.
7. Place the fan switch in the ON position. The system blower should start.
8. Place the fan switch in the AUTO position. The system blower should stop.
5.2
Setting Temperature Differential
NOTE: The temperature differential settings are the same for both the
heating and cooling systems.
The default settings for the temperature differential is compatible with most systems and
applications. The temperature differential is normally set at time of installation and usually does
not require any modification under normal operating conditions. If you feel that your system is
turning on too often, simply follow the instructions below.
The default setting is 1˚ F (0.5˚ C). The room temperature must change 1˚ F (0.5˚ C) from the
setpoint temperature before the thermostat will initiate the system in heating or cooling.
2.
Press the or buttons to set the temperature differential to your desired setting of 1˚, 2˚,
or 3˚ F (0.5˚, 1.0˚, or 1.5˚ C).
1.
In normal operating mode, press and hold
both the and buttons at the same time
for 4 seconds. LCD display will show "SET
D1 x˚", where "x" equals the ˚F / ˚C
differential setting. This is the current
temperature differential setting.
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